Copy-and-paste code

{{ArticleMessageBox
|barcolor = <- the sidebar color, either by name or #rgb, see below ->
|image = <- the image name, not wikified ->
|text = <- the text that is displayed in the Message Box, wiki-text and links allowed ->
|includeonly = <- articles are automatically placed in this category ->
}}

Most Article message boxes have a background color of #fbfbfb (slightly off white), which is intended to contrast slightly with the full white (#ffffff) used for articles, while still being easy to read.